Trailsift Pro

£15, $19 or €17, once. No subscription, for all of your own Macs.

What Pro adds

The protected places in full: Safari, Messages attachments, the Trash, Quick Look thumbnails and the activity databases.
Word Search through your browsing history, downloads, file names and documents.
Clean up the traces you choose, after a preview of exactly what goes.
Deep scan for images and videos in caches and hidden folders.
Save and copy reports.

The free audit already covers every place macOS lets an app read, and shows where Pro would reveal more.

Payment is handled by Link, Stripe's merchant of record service, which charges any VAT or sales tax and sends your receipt. Your licence arrives by email straight away. Refunds within 14 days, no questions asked. See the terms of sale.